Diurnal vertical migration in the Southern Ocean: Importance to carbon sequestration and impacts from future oceanic warming

项目背景：中上层物种每天从它们白天占据的较深水域迁徙到夜间的表层水域，是地球上发生的最重要的大规模运动事件。这种迁移将大量生物量的碳从表层水域输送到海洋深处，是海洋生物碳泵的关键组成部分(据估计，迁移占海洋碳固定总量的约32%)。尽管这很重要，但关于参与日常迁徙的物种、决定迁徙程度的因素以及这条固碳气候变暖途径的脆弱性，仍存在相当大的不确定性。该项目旨在解决南大洋中上层物种碳运输的范围，以及这一关键过程将如何受到未来气候变暖的影响。

Project Background: The daily migration of mesopelagic species from deeper waters they occupy during the day, to the surface waters during the night, is the most important mass movement event that takes place on Earth. The migration transports a vast biomass of carbon from the surface waters to the ocean depths and is a key component of marine biological carbon pump (the migration is responsible for an estimated ~32% of total oceanic carbon sequestration). Despite this importance, there is considerable uncertainty regarding the species involved in the daily migration, the factors that determine the extent of migration, and the vulnerability of this pathway of carbon sequestration climate warming. This project aims to resolve the extent of carbon transport by mesopelagic species of the Southern Ocean and how this critical process will be affected by future climatic warming.